New ASN1_STRING_print_ex() and X509_NAME_print_ex()

functions. These are intended to be replacements
for the ancient ASN1_STRING_print() and X509_NAME_print()
functions.

The new functions support RFC2253 and various pretty
printing options. It is also possible to display
international characters if the terminal properly handles
UTF8 encoding (Linux seems to tolerate this if the
"unicode_start" script is run).

Still needs to be documented, integrated into other
utilities and extensively tested.

1 files changed, 80 insertions, 0 deletions

diff --git a/crypto/asn1/charmap.pl b/crypto/asn1/charmap.pl
new file mode 100644
index 0000000000..2875c59867
--- /dev/null
+++ b/crypto/asn1/charmap.pl
@@ -0,0 +1,80 @@
+#!/usr/local/bin/perl -w
+
+use strict;
+
+my ($i, @arr);
+
+# Set up an array with the type of ASCII characters
+# Each set bit represents a character property.
+
+# RFC2253 character properties
+my $RFC2253_ESC = 1;	# Character escaped with \
+my $ESC_CTRL	= 2;	# Escaped control character
+# These are used with RFC1779 quoting using "
+my $NOESC_QUOTE	= 8;	# Not escaped if quoted
+my $PSTRING_CHAR = 0x10;	# Valid PrintableString character
+my $RFC2253_FIRST_ESC = 0x20; # Escaped with \ if first character
+my $RFC2253_LAST_ESC = 0x40;  # Escaped with \ if last character
+
+for($i = 0; $i < 128; $i++) {
+	# Set the RFC2253 escape characters (control)
+	$arr[$i] = 0;
+	if(($i < 32) || ($i > 126)) {
+		$arr[$i] |= $ESC_CTRL;
+	}
+
+	# Some PrintableString characters
+	if(		   ( ( $i >= ord("a")) && ( $i <= ord("z")) )
+			|| (  ( $i >= ord("A")) && ( $i <= ord("Z")) )
+			|| (  ( $i >= ord("0")) && ( $i <= ord("9")) )  ) {
+		$arr[$i] |= $PSTRING_CHAR;
+	}
+}
+
+# Now setup the rest
+
+# Remaining RFC2253 escaped characters
+
+$arr[ord(" ")] |= $NOESC_QUOTE | $RFC2253_FIRST_ESC | $RFC2253_LAST_ESC;
+$arr[ord("#")] |= $NOESC_QUOTE | $RFC2253_FIRST_ESC;
+
+$arr[ord(",")] |= $NOESC_QUOTE | $RFC2253_ESC;
+$arr[ord("+")] |= $NOESC_QUOTE | $RFC2253_ESC;
+$arr[ord("\"")] |= $RFC2253_ESC;
+$arr[ord("\\")] |= $RFC2253_ESC;
+$arr[ord("<")] |= $NOESC_QUOTE | $RFC2253_ESC;
+$arr[ord(">")] |= $NOESC_QUOTE | $RFC2253_ESC;
+$arr[ord(";")] |= $NOESC_QUOTE | $RFC2253_ESC;
+
+# Remaining PrintableString characters
+
+$arr[ord(" ")] |= $PSTRING_CHAR;
+$arr[ord("'")] |= $PSTRING_CHAR;
+$arr[ord("(")] |= $PSTRING_CHAR;
+$arr[ord(")")] |= $PSTRING_CHAR;
+$arr[ord("+")] |= $PSTRING_CHAR;
+$arr[ord(",")] |= $PSTRING_CHAR;
+$arr[ord("-")] |= $PSTRING_CHAR;
+$arr[ord(".")] |= $PSTRING_CHAR;
+$arr[ord("/")] |= $PSTRING_CHAR;
+$arr[ord(":")] |= $PSTRING_CHAR;
+$arr[ord("=")] |= $PSTRING_CHAR;
+$arr[ord("?")] |= $PSTRING_CHAR;
+
+# Now generate the C code
+
+print <<EOF;
+/* Auto generated with chartype.pl script.
+ * Mask of various character properties
+ */
+
+static unsigned char char_type[] = {
+EOF
+
+for($i = 0; $i < 128; $i++) {
+	print("\n") if($i && (($i % 16) == 0));
+	printf("%2d", $arr[$i]);
+	print(",") if ($i != 127);
+}
+print("\n};\n\n");
+